2010/3/22 rrbold <[email protected]>: > Running Sage 4.3, coercion to the trivial vector space triggers a > SIGBUS as below: > > ---------------------------------------------------------------------- > | Sage Version 4.3, Release Date: 2009-12-24 | > | Type notebook() for the GUI, and license() for information. | > ---------------------------------------------------------------------- > sage: V = VectorSpace(GF(2),6) > sage: W = V > sage: quo = V/W > sage: quo(V.basis()[0])
This is a bug. I've reported it here: http://trac.sagemath.org/sage_trac/ticket/8580 Hopefully Martin Albrecht will fix it. William > > > ------------------------------------------------------------ > Unhandled SIGBUS: A bus error occured in SAGE. > This probably occured because a *compiled* component > of SAGE has a bug in it (typically accessing invalid memory) > or is not properly wrapped with _sig_on, _sig_off. > You might want to run SAGE under gdb with 'sage -gdb' to debug this. > SAGE will now terminate (sorry). > ------------------------------------------------------------ > > > This is on my student's machine, which I do not have access to at the > moment: > I foolishly logged out without running 'uname -a' or the like. I do > believe it is > a Mac. My office and home machines are running earlier versions > (3.4.2) in which > the problem does not occur. If it turns out to be hard to reproduce, > I am happy to > uncover the relevant data. > Bob > > -- > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/sage-support > URL: http://www.sagemath.org > > To unsubscribe from this group, send email to > sage-support+unsubscribegooglegroups.com or reply to this email with the > words "REMOVE ME" as the subject. > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-support+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
